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Converting pixels to dp
...5 on ldpi (120 dpi)
1.0 on mdpi (160 dpi; baseline)
1.5 on hdpi (240 dpi)
2.0 on xhdpi (320 dpi)
3.0 on xxhdpi (480 dpi)
4.0 on xxxhdpi (640 dpi)
Use this online converter to play around with dpi values.
EDIT:
It seems there is no 1:1 relationship between dpi bucket and density. It looks lik...
Easy way to convert Iterable to Collection
...t goes unused. There's another cost: licensing complications. The Apache 2.0 license is flexible, but not without some tedious mandates. Ideally we would see some of these common patterns integrated directly into the Java runtime libraries.
– Jonathan Neufeld
...
How to get a microtime in Node.js?
...milliseconds, but it's a float with sub-millisecond precision.
In Version 2.0 of this module, the reported milliseconds are relative to when the node process was started (Date.now() - (process.uptime() * 1000)). You need to add that to the result if you want a timestamp similar to Date.now(). Also ...
Using custom fonts using CSS?
...enjoys the widest support but is not available in some older browsers
WOFF 2.0 support is a work in progress for many browsers.
If you want your web app to have the same font across all browsers then you might want to provide all 4 font type in CSS
@font-face {
font-family: 'besom'; !imp...
How to customize the background color of a UITableViewCell?
...
The equivalent line for setting background color in Swift 2.0: cell.backgroundColor = UIColor.clearColor
– kbpontius
Mar 2 '16 at 22:28
add a comment
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What is the difference between $(command) and `command` in shell programming?
...uly 2014: The commit f25f5e6 (by Elia Pinto (devzero2000), April 2014, Git 2.0) adds to the nesting issue:
The backquoted form is the traditional method for command substitution, and is supported by POSIX.
However, all but the simplest uses become complicated quickly.
In particular, embedded...
Referencing system.management.automation.dll in Visual Studio
...
@ashes999 PowerShell 2.0 actually runs on the 1.0 DLL.
– kravits88
Sep 23 '13 at 12:16
3
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Making the iPhone vibrate
...
Swift 2.0+
AudioToolbox now presents the kSystemSoundID_Vibrate as a SystemSoundID type, so the code is:
import AudioToolbox.AudioServices
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate)
AudioServicesPlayAlertSound(kSystemSou...
How to merge a transparent png image with another image using PIL
...lso contains transparency. You need to use real Alpha Compositing.
Pillow 2.0 contains an alpha_composite function that does this.
background = Image.open("test1.png")
foreground = Image.open("test2.png")
Image.alpha_composite(background, foreground).save("test3.png")
EDIT: Both images need to...
Check if the number is integer
...rustrating that R doesn't present the result of the initial calculation as 2.0 to represent that the value has some decimal component) see... stackoverflow.com/questions/1535021/…
– John
Aug 13 '10 at 13:52
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